CaO-SiO_2-MgO-H_2O体系的热力学研究  

THERMODYNAMIC ANALYSIS OF CaO-SiO_2-MgO-H_2O SYSTEM UNDER HYDROTHERMAL CONDITION

作　　者：徐光亮[1] 赖振宇[1] 钱光人[1] 杨世源[1] 周歧雄[2] 

机构地区：[1]西南工学院,四川绵阳621002 [2]新疆工学院,新疆乌鲁木齐830000

出　　处：《西南工学院学报》1999年第3期1-5,共5页Journal of Southwest China Institute of Technology

基　　金：国家自然科基金;国家建材局行业基金

摘　　要：本文研究了ＣａＯ－ＳｉＯ２－ＭｇＯ－Ｈ２Ｏ体系的热力学，结果表明：ＳｉＯ２ 优先与ＣａＯ水热形成水化硅酸钙，多余的ＳｉＯ２ 才会与ＭｇＯ直接水热形成水化硅酸镁。当没有ＳｉＯ２ 时，ＭｇＯ才会水化形成Ｍｇ（ＯＨ）２。Thermodynamics properties of CaO SiO 2 MgO H 2O system under hydrothermal condition were investigated. Results indicate, SiO 2 tend to react with CaO first under hydrothermal condition, calcium silicate hydrates are their products. Surplus SiO 2 may react with MgO, form magnesium silicate hydrates. When there is no SiO 2 exist, MgO will react with water under hydrothermal condition, Mg(OH) 2 forms.

关 键 词：CaO-SiO2-MgO 水热反应 热力学 冶金渣 

分 类 号：TQ170.4[化学工程—硅酸盐工业] X756.03[环境科学与工程—环境工程]